Properties of Quadrilaterals (always, sometimes, never)
A parallelogram is ___ a rectangle.
sometimes
The interior angle sum of any quadrilateral is ___.
360 degrees
A kite is ___ a quadrilateral.
always
A pair of consecutive sides of rhombus is ___ congruent.
always
A pair of consecutive sides of square is ___ congruent.
always
A parallelogram is ___ a quadrilateral.
always
A rectangle is ___ a parallelogram.
always
A rectangle is ___ a quadrilateral.
always
A rhombus is ___ a parallelogram.
always
A rhombus is ___ a quadrilateral.
always
A square is ___ a parallelogram.
always
A square is ___ a quadrilateral.
always
A square is ___ a rectangle.
always
A square is ___ a rhombus.
always
A trapezoid is ___ a quadrilateral.
always
An isosceles trapezoid is ___ a quadrilateral.
always
An isosceles trapezoid is ___ a trapezoid.
always
Diagonals of a parallelogram ___ bisect each other.
always
Diagonals of a rectangle ___ bisect each other.
always
Diagonals of a rectangle are ___ congruent.
always
Diagonals of a rhombus ___ bisect each other.
always
Diagonals of a square ___ bisect each other.
always
Diagonals of a square are ___ congruent.
always
Diagonals of an isosceles trapezoid are ___ congruent.
always
Opposite angles of a parallelogram are ___ congruent.
always
Opposite angles of a rectangle are ___ congruent.
always
Opposite angles of a rhombus are ___ congruent.
always
Opposite angles of a square are ___ congruent.
always
Opposite sides of a parallelogram are ___ congruent.
always
Opposite sides of a rectangle are ___ congruent.
always
Opposite sides of a rhombus are ___ congruent.
always
Opposite sides of a square are ___ congruent.
always
The length of a trapezoid's midsegment is the ___ of the bases.
average (sum divided by two)
The parallel sides of a trapezoid are the ___.
bases
A polygon is _____ if there are "dents" or indentations in it (where the internal angle is greater than 180°)
concave
Congruent angles have ___ measures.
equal
Congruent sides have ___ side lengths.
equal
A trapezoid with congruent legs is called an ___ trapezoid.
isosceles
If exactly one pair of opposite sides of a quadrilateral are congruent, then the quadrilateral is an ___.
isosceles trapezoid
A quadrilateral with two distinct pairs of congruent adjacent sides is a ___.
kite
The nonparallel sides of a trapezoid are the ___.
legs
A kite is ___ a parallelogram.
never
A kite is ___ a rectangle.
never
A kite is ___ a square.
never
A kite is ___ a trapezoid.
never
A kite is ___ an isosceles trapezoid.
never
A parallelogram is ___ a kite.
never
A parallelogram is ___ a trapezoid.
never
A parallelogram is ___ an isosceles trapezoid.
never
A rectangle is ___ a kite.
never
A rectangle is ___ a rhombus.
never
A rectangle is ___ a trapezoid.
never
A rectangle is ___ an isosceles trapezoid.
never
A rhombus is ___ a kite.
never
A rhombus is ___ a rectangle.
never
A rhombus is ___ a trapezoid.
never
A rhombus is ___ an isosceles trapezoid.
never
A square is ___ a kite.
never
A square is ___ a trapezoid.
never
A square is ___ an isosceles trapezoid.
never
A trapezoid is ___ a kite.
never
A trapezoid is ___ a parallelogram.
never
A trapezoid is ___ a rectangle.
never
A trapezoid is ___ a rhombus.
never
A trapezoid is ___ a square.
never
An isosceles trapezoid is ___ a kite.
never
An isosceles trapezoid is ___ a parallelogram.
never
An isosceles trapezoid is ___ a rectangle.
never
An isosceles trapezoid is ___ a rhombus.
never
An isosceles trapezoid is ___ a square.
never
Diagonals of a kite are ___ congruent.
never
Diagonals of a trapezoid ___ bisect each other.
never
Diagonals of an isosceles trapezoid ___ bisect each other.
never
Opposite angles of a trapezoid are ___ congruent.
never
Opposite angles of an isosceles trapezoid are ___ congruent.
never
A quadrilateral with two pairs of opposite sides parallel is a ___.
parallelogram
A quadrilateral with four congruent sides is a ___.
rhombus
A pair of consecutive sides of rectangle is ___ congruent.
sometimes
A parallelogram is ___ a rhombus.
sometimes
A parallelogram is ___ a square.
sometimes
A quadrilateral is ___ a kite.
sometimes
A quadrilateral is ___ a parallelogram.
sometimes
A quadrilateral is ___ a rectangle.
sometimes
A quadrilateral is ___ a rhombus.
sometimes
A quadrilateral is ___ a square.
sometimes
A quadrilateral is ___ a trapezoid.
sometimes
A quadrilateral is ___ an isosceles trapezoid.
sometimes
A rectangle is ___ a square.
sometimes
A rhombus is ___ a square.
sometimes
A trapezoid is ___ an isosceles trapezoid.
sometimes
Diagonals of a parallelogram are ___ congruent.
sometimes
Diagonals of a rhombus are ___ congruent.
sometimes
Diagonals of a trapezoid are ___ congruent.
sometimes
Opposite sides of a quadrilateral are ___ congruent.
sometimes
A quadrilateral with four right angles and four congruent sides is a ___.
square
The only regular quadrilateral (congruent sides and angles) is the ___.
square
Two angles are ___ if the sum of their measures is 180 degrees.
supplementary
Another name for a trapezoid is ___.
trapezium
A quadrilateral with exactly one pair of opposite sides parallel is a ___.
trapezoid
Every quadrilateral has ___ diagonals.
two